
LanguageTool
Free proofreading tool for OpenOffice, LibreOffice, Firefox, and Chrome. Also available as a standalone application. Supports about 20 languages (on different levels) and allows customization.
A Gmail Plug-in that warns you when you write emails using words which undermine your message.
justnotsorry Gmail Plugin that warns you when you write emails using words which undermine your message
proofreader proofreading